circlelab.de - dns.ninja
circlelab.de
de
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | f.nic.de ⭐ | ||||||
| NS | a.nic.de | ||||||
| NS | l.de.net ⚠️ Not in parent delegation | ||||||
| NS | n.de.net ⚠️ Not in parent delegation | ||||||
| NS | s.de.net ⚠️ Not in parent delegation | ||||||
| NS | z.nic.de | ||||||
| SOA | f.nic.dedns-operations@denic.de serial=1785296457 | ||||||
Previously MX for
circlelab.de |
Subdomains
hostmaster.circlelab.de |
mail.circlelab.de |
Same first word
Similar names
DNS History
16 records (7 active, 9 former)
○NSns.stratoserver.net2009-01-11 → 2009-01-11 · 3 obs
○ 2015-06-19 10:38:30
○ 2026-07-29 03:42:00
○NSns1.hans.hosteurope.de2015-06-19 → 2017-05-18 · 5 obs
● 2015-06-19 10:38:30
● 2017-05-18 08:09:30
○ 2026-04-05 03:59:54
○ 2026-07-29 03:42:00
○NSns2.hans.hosteurope.de2015-06-19 → 2017-05-18 · 5 obs
● 2015-06-19 10:38:30
● 2017-05-18 08:09:30
○ 2026-04-05 03:59:54
○ 2026-07-29 03:42:00
○NSns2.stratoserver.net2009-01-11 → 2009-01-11 · 3 obs
○ 2015-06-19 10:38:30
○ 2026-07-29 03:42:00
●NSroot-dns.netcup.net2026-04-05 → 2026-07-29 · 3 obs
● 2026-04-05 03:59:54
● 2026-07-29 03:42:00
●NSsecond-dns.netcup.net2026-04-05 → 2026-07-29 · 3 obs
● 2026-04-05 03:59:54
● 2026-07-29 03:42:00
●NSthird-dns.netcup.net2026-04-05 → 2026-07-29 · 3 obs
● 2026-04-05 03:59:54
● 2026-07-29 03:42:00
○MXcirclelab.de2009-01-11 → 2009-01-11 · 3 obs
○ 2015-06-19 10:38:30
○ 2026-07-29 03:42:00
○MXmail.circlelab.de2015-06-19 → 2017-05-18 · 5 obs
● 2015-06-19 10:38:30
● 2017-05-18 08:09:30
○ 2026-04-05 03:59:54
○ 2026-07-29 03:42:00
○MXmx0.stratoserver.net2009-01-11 → 2009-01-11 · 3 obs
○ 2015-06-19 10:38:30
○ 2026-07-29 03:42:00
●MXmxext1.mailbox.org2026-04-05 → 2026-07-29 · 3 obs
● 2026-04-05 03:59:54
● 2026-07-29 03:42:00
●MXmxext2.mailbox.org2026-04-05 → 2026-07-29 · 3 obs
● 2026-04-05 03:59:54
● 2026-07-29 03:42:00
●MXmxext3.mailbox.org2026-04-05 → 2026-07-29 · 3 obs
● 2026-04-05 03:59:54
● 2026-07-29 03:42:00
○A5.45.104.242015-06-19 → 2017-05-18 · 5 obs
● 2015-06-19 10:38:30
● 2017-05-18 08:09:30
○ 2026-04-05 03:59:54
○ 2026-07-29 03:42:00
○A85.214.114.2102009-01-11 → 2009-01-11 · 3 obs
○ 2015-06-19 10:38:30
○ 2026-07-29 03:42:00
●A94.16.104.1632026-04-05 → 2026-07-29 · 3 obs
● 2026-04-05 03:59:54
● 2026-07-29 03:42:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| circlelab.de | root-dns.netcup.net, second-dns.netcup.net, third-dns.netcup.net | - |
✅ Authoritative Response
Server:46.38.225.225
NS records: root-dns.netcup.net, second-dns.netcup.net, third-dns.netcup.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for circlelab.de (unsigned zone)
⏱️ Timing
Total: 793ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 94.16.104.163 |
| NS | 3 | third-dns.netcup.net, second-dns.netcup.net... |
| MX | 3 | mxext1.mailbox.org (pri: 10), mxext2.mailbox.org (pri: 10)... |
| TXT | 1 | v=spf1 include:mailbox.org ~all |
| SOA | 1 | root-dns.netcup.net dnsadmin.netcup.net |
Analysis
Hierarchy
The parent domain of hostmaster.circlelab.de and mail.circlelab.de is circlelab.de.
IP Addresses
circlelab.de directs to one IP number, which is 94.16.104.163.
Among the host names that share IP numbers with circlelab.de are mail.attirb.de, wohnhof-am-bahndamm.de, mail.circlelab.de and two others.
Name Servers
circlelab.de carries NS records delegating to root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net.
circlelab.de partially shares its NS delegation with several other domains, including druckerei-erlangen.de, about-go.com, c2konzepte.de and two others.
root-dns.netcup.net, second-dns.netcup.net and third-dns.netcup.net are three hostnames that each resolve to a pair of IP addresses: root-dns.netcup.net to 46.38.225.225 and 2a03:4000:0:1::e1e1, second-dns.netcup.net to 37.221.199.199 and 2a03:4000:2:24b::c7c7, and third-dns.netcup.net to 188.68.63.68 and 2a03:4001:0:106::3f44.
Mail Servers
circlelab.de uses three mail servers — mxext1.mailbox.org, mxext2.mailbox.org and mxext3.mailbox.org.
circlelab.de shares at least some of its mail servers with other domains — for example con.cer.to, sraega.net, ns1.tanzmuster.com and two more.
mxext1.mailbox.org, mxext2.mailbox.org and mxext3.mailbox.org are three hostnames that each resolve to a pair of IP addresses: mxext1.mailbox.org to 80.241.60.212 and 2001:67c:2050:104:0:1:25:1, mxext2.mailbox.org to 80.241.60.215 and 2001:67c:2050:104:0:2:25:1, and mxext3.mailbox.org to 80.241.60.216 and 2001:67c:2050:104:0:3:25:1.